.\" $OpenBSD: userinfo.8,v 1.13 2010/09/03 11:22:36 jmc Exp $
.\" $NetBSD: userinfo.8,v 1.8 2003/02/14 16:11:37 grant Exp $
.\"
.\" Copyright (c) 1999 Alistair G. Crooks.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by Alistair G. Crooks.
.\" 4. The name of the author may not be used to endorse or promote
.\"    products derived from this software without specific prior written
.\"    permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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.\"
.\"
.Dd $Mdocdate: September 3 2010 $
.Dt USERINFO 8
.Os
.Sh NAME
.Nm userinfo
.Nd display user information
.Sh SYNOPSIS
.Nm userinfo
.Op Fl e
.Ar user
.Sh DESCRIPTION
The
.Nm
utility displays information about the specified
.Ar user .
The fields shown are defined in
.Xr master.passwd 5 .
The encrypted password is only displayed if the calling user is the
superuser.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl e
Do not display anything (quiet mode).
This form of the command is useful for
scripts which need to check whether a particular user
name or UID is already in use on the system.
.El
.Pp
The
.Ar user
argument may be either a user name or a user ID (UID).
.Sh EXIT STATUS
The
.Nm
utility exits 0 if
.Ar user
exists, and non-zero if it does not.
.Sh SEE ALSO
.Xr id 1 ,
.Xr passwd 5 ,
.Xr groupinfo 8 ,
.Xr user 8
.Sh HISTORY
The
.Nm
utility first appeared in
.Ox 2.7 .
.Sh AUTHORS
The
.Nm
utility was written by
.An Alistair G. Crooks Aq agc@NetBSD.org .